Ever seen this?

Has anyone ever seen a seeding like this? The cotyledons were normal, but the first true leaves are not. There is only one leaf not a pair, and it is also misshapen. The rest of the seedlings are normal. Is this one a mutant?

I have had strange leafs before, that one is def mutated.

Man My super skunk started off that way, had this dark green leaves that were like 3 fingers and werent flat, they looked like noodles, It grew up and those leaves stayed mutant, but nice real good fans formed after 2 weeks or so and she too the fuck off

having same probs for a while with clones mate posted a few notes never had any answers,

I've got a mutant now too - going to let it grow and see what happens...